Espressif Systems ESP8266EX - Typical Applications; 5.1. WiFi smart hardware converted from UART serial ports; 5.2. Sensor; 5.3. Smart light

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Appendix A
4. In cases like this, users can set a timer to call Wi-Fi_station_disconnect in order to
stop the ESP8266 Station from continuously trying to connect to the router. Users can
also call Wi-Fi_station_set_reconnect_policy or Wi-Fi_station_set_auto_connect
to disable the ESP8266 Station from reconnecting to the router.
A.3. ESP8266 Boot Messages
ESP8266 outputs boot messages through UART0 with a baud rate of 74880:
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Below is the description about the boot messages:
Boot messages
Description
rst cause
1: power on
2: external reset
4: hardware watchdog reset
boot mode
(the first parameter)
1: ESP8266 is in UART-down mode; so firmware is downloaded into the flash via
UART.
3: ESP8266 is in Flash-boot mode and boots up from the flash.
chksum
If chksum == csum, it means that flash is read correctly during booting.
Espressif
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2017.05